Rolls



UNITED STATES PATENT OFFICE.

MORRIS SELLERS, OF CHICAGO, ILLINOIS.

ROLLS.

SPECIFICATION forming part of Letters Patent No. 367,933, dated August 9, 1887.

Application filed January 14, 1887. Serial No. 225,3()4. (No model.) d

To all whom, it may concern: v

Be it known that I, MORRIS SELLERS, residing at Chicago, in the county of Cook and State Vof Illinois, a citizen of the United States, have invented or discovered a certain new and useful Improvement in Rolls, of which improvenient the following'is a specification.

In the accompanying d1awings,which make part of this specification, Figure/1 is a view in side elevation of portions of two rolls embodying iny invention. Fig. 2 is a sectional view, the section being taken on the line xxx, Fig. 1. Figs. 3 and 4 are views similar to Figs. 1 and 2 of a modified forni' o f my invention.

In an application, D, of even date herewith, I have described and claimed a splice bar comparatively thick at its'middle portion,

, taperingtherefrom each way toward its ends,

and provided with seats for the bolt-heads'or nuts substantially parallel `with the rear face of the bar, or the web of (he rail to which said/ bar is to be applied.

The invention herein relates to the construction of rolls suitable for the production of splice-bars having the characteristics above mentioned; and it consists, generally stated, of a roll having a tongue,.a portion of whose operative surface is formed on the are of a circle whose center is outside of the axis of the roll, said portion of the tongue having certain sections or parts of its operative surface formed on ares of circles concentric with the axis ofthe roll, and Whose radii vary in accordance with the position of said sections, all as will be more fully hereinafter described and claimed. V n f The roll l provided with the tongue2,is cast and turned down in the usual 1nanner,and, the tongue having been reduced to a diameter equal to the greatest diameter iu the finished roll, a portion, 3, of the face of said tongue is reduced or made to conform to the arc of a circle whose center is outside of the axis of the roll and distanttherefrom an amount equal to half the excess of thickness desired at the middie of the bar over that at its ends, all as more fully described and shown in applications A and B, of even dateherewith. i

The roll constructed as above stated is adapted for the formation of a splice-bar comparatively thick at its middle and inclined or tapered on one face each way toward its ends.

In securing such a construction of splice-bar to the rails the fastening-bolts are bent by the tipping` of the bolt-heads or nuts when the lat ter are screwed tightly against the face of the splice-bar, all as fully described in application D, of even date herewith. In order to avoid the bending of the bolts,I have described and claimed in said application a splice-bar having seats for the bolt-heads or nuts parallel with the rear face of the splicelbar. For the purpose of forming the seats during the rolling of the splice-bar short sections or parts 4 of the operative face of the portion 3 of the tongue 2 are made to coliform as regards their faces to arcs of circles concentric with the axis of the roll, the radii of the arcs of circles varying in accordance with theposition of the seatforming sections 4 on the portion S-i. c., the

radii of the arcs of said circles increase in length proportionately to the distance of said scat-forming sections from the point o of least eccentricity of the portion 3 of the tongue. These seat-forming sections may either project from the surface ofthe portion 3 of the tongue, as shown in Fig. 2, or be depressed below such surfaces, as shown in Fig. 3. The roll 5 is formed,in the usual manner, with a groove, 6, having its surface concentric with the axis of the roll. l

In using rolls constructed as above described a bar passing between said rolls will be reduced, as fully set forth in applications A and B, to a series of sections having comparatively thick middle portions and tapering or inclined each way from such thick portions, the shaping of such sections being effected by the portion 3 of the tongue. In addition, however, to the'tapering above referred to,thc seat-forming sections 4 operate to reduce portions ofthe bar to parallelism with its rear face, either by depressing such portions of the bar when the construction of seat-forming sections shown in Fig. 2y is used, or the forcing of the metal of the bar into the seat-forming depressions when the construction shown in Fig. 3 is employed. It is obvious that asthe groove 6 of the roll 5 and the faces of the seat-forming sections 4 are concentricwith the axes of rotation of the rolls 1 and 5 the portions of the bar operated on by said parts will be substantially parallel. The number of scat-forming sections 4 corresponds to the number of bolts IOO to be used-ez'. c, six or four, as circumstances require.

1n ease it is desired to forni the splice-bar with ribs or a rib and flange along its edges, grooves are formed in thecdges ofthe tongue, as fully described in application B, above referred to, and the seat-forming sections t inside the rib or flange forming grooves or recesses 7 As the portion 3 ofthe tongue 2 and the seat-forming sections are not concentric, the divergenee of the surfaces of said parts will be gradual at one end of said sections.

If desired, the tongue 2 maybe formed with two or more non-concentric portions 3 in the manner set forth in applications A and B, above referred to.

I claim herein as my inventionn l. In a mill for forming splice-bars having their body portion tapering from the middle to their ends and provided with seats for boltheads or nuls, a roll having a tongue a portion of whose operative surface is formed on the arc of a circle whose center is Without the axis of the roll, said portion being provided with seat-forming sections formed on arcs of circles concentric with the axis of the roll, in combination with a roll having a groove concentric with its axis, substantially as set forth.

2. In a mill for forming splice-bars having their body portion tapering from the middle to the ends and provided with seats Afor boltheads or nuts, a roll having a tongue a p0rtion, 3, of Whose operative surface is formed on the arc of a circle Whose center is without the axis of the roll, said portion being provided with seat-forming sections formed on arcs of circles concentric with the axis of the roll, and whose radii are shorter than the radi us ofthe portion 3, in combination with a roll ha'ving a groove concentric with the axis of roll, substantially as set forth.

3. In a mill for forming Splicebals having their body portion tapering `from the middle to the ends and continuous upper and lower edges, and provided with seats for the boltheads or mits, a roll having a tongue a portion, 3, of whose operative surface is formed on the are el' a circle having its center outside the axis of the roll, said tongue being provided witli grooves or recesses at its edges concentric with the axis of the roll and the portion of said tongue having scat-forming se@ tions,also concentric with the axis of the roll, in combination with a roll having a groove concentric willi its axis, substantially as set forth.

In testimony whereof I have hereunto set my hand.

MORRIS SELLERS.

\Vitncsses: R. Il. XVNTT'rLnsnY, DARWIN S. XVoLoo'ri. 

